Answer: B
Explanation: I took the quiz
I think it would be the diversification of races and culture that the United States have today. Immigration have changed and shifted United States in politics, economics, social and culture that enables the US to be what it is today. Diversification plays a significant role in the US because it shifted the policies of the country and it makes the country more flexible and achieve a level of prosperity and progress in all aspects.
<span>It was found that the heliocentric model, which was being used as the competing theory at the time, was simpler in the way that it described the relationships between the planets and the sun. The measurements made that placed the earth at the center of the universe were coming back with results that didn't make sense, as well.</span>
